[libvirt] trying to build 0.9.13 on F17: cannot find -lcrypto

In trying to build libvirt 0.9.13 on F17, I'm hitting a link error: ... CCLD libvirt_driver_nodedev.la CCLD libvirt_driver_nwfilter.la /usr/bin/ld: cannot find -lcrypto Full log here: http://kojipkgs.fedoraproject.org//work/tasks/3678/4233678/build.log I think this comes from rbd support, from configure.ac: LIBRBD_LIBS="-lrbd -lrados -lcrypto" from this commit: http://libvirt.org/git/?p=libvirt.git;a=commit;h=74951eadef85e2d100c7dc7bd9a... What's missing here? RPM BuildRequires, configure change, ...? Thanks, Cole